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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 484906Generated: October 29, 2026

2-(1H-Indazol-3-yl)-1H-isoindole-1,3(2H)-dione → 1-(3-Pyrrolidinopropyl)-3-aminoindazole

https://huagongshe.com/reaction/484906

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(1H-Indazol-3-yl)-1H-isoindole-1,3(2H)-dioneHCID 2755857—
Reactant(3-Bromopropyl)diethylamine hydrobromideHCID 12639158—
Reactant1-(3-Diethylaminopropyl)-3-amino-4-chloroindazoleHCID 13229325—
Reactant2-(4-chloro-1H-indazol-3-yl)isoindoline-1,3-dioneHCID 13229771—
Reactant1-(3-Bromopropyl)pyrrolidine hydrobromideHCID 20135920—
Product1-(3-Pyrrolidinopropyl)-3-aminoindazoleHCID 3028865—

Reaction Steps

The same procedures for preparing 1-(3-diethylaminopropyl)-3-amino-4-chloroindazole as described in Example 89 were repeated except that 8 g of 3-phthalimidoindazole and 9.5 g of 3-bromopropylpyrrolidine hydrobromide were employed instead of the 3-phthalimido-4-chloroindazole and the 3-bromopropyldiethylamine hydrobromide, respectively. As a result, 8.2 g of 1-(3-pyrrolidinopropyl)-3-aminoindazole was obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04533731
Source datasetuspto-grants-1985_08
ORD IDord-a18fc874d8fc41589f82a55438ee021e
Source noteuspto-grants-1985_08